I just tested it entirely (with several crashes).
The 2nd boss, Thrug the Troll, cannot kill me (biggest hit = ~9700 with 51.6% Crit. Def.), but it took time because of its healing buff and the power debuff (I did not see what causes it)
I should have done it in Full DPS gear.
The last boss Lúmithil is ridiculous : done semi-AFK (healed by adds), biggest hit = 10130, but too rare to be dangerous (3 during all the fight (a few minutes), done with 38K Morale))
And I only saw
-9312 on your LM in your last video...
Some damage are useless :
"The Lúmithil reflected 13 Shadow damage to the Morale of Christianx."
"The Lúmithil reflected 31 Shadow damage to the Morale of Christianx."
I did not notice anything about this in B5 release notes :
Ruined City:
Haradrim mobs have more skills they can use against players
Some debuffs are not scaled for lvl 100 (same thing in skraids for a long time)
For example, from Archers =>
200 damage every 3 seconds is nothing.
So, if 3-manned, impossible to fail in T1 with an heavy class.